Novel CWDM single-fiber dual-direction receiving and sending device and packaging method
A single-fiber two-way transceiver and device technology, which is applied in the coupling of electromagnetic transceivers and optical waveguides, can solve the problems of lasers and detectors that cannot meet the requirements and have large losses
Active Publication Date: 2015-05-20
SUSR COMM TECH
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Problems solved by technology
This structure and similar structures can generally meet the requirements of single-fiber bidirectional transceivers with a wavelength interval of 60nm and above. However, when a single-fiber bidirectional transceiver with a small interval wavelength (interval 20nm to 60nm) is used on this structure, the loss is too large and the laser and detector indicators can not meet the requirements
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[0016] A new type of CWDM single-fiber bidirectional transceiver device, such as figure 2 and image 3 As shown, it includes: laser chip 1, laser chip tube holder 2, metal adjustment ring 3, filter holder 4, metal shell 5, optical fiber assembly 6, rubber sheath 7, detector chip 8, isolator seat 9, light The isolator 10, the first filter 11, the second filter 12, the third filter 13, etc., wherein: .
[0017] The first filter sheet 11, the second filter sheet 12 and the third filter sheet 13 are fixed on the filter sheet holder 4 by baking glue, wherein the first filter sheet 11 is a glass slide at the transmitting end, and the included angle with the vertical direction is 10° ° to 15°; the second filter 12 is a glass slide at the receiving end, and is arranged in the horizontal direction; the third filter 13 is a total reflection glass slide, and the included angle with the horizontal direction is 30° to 35°. The filter holder 4 and the metal shell 5 are assembled by means...
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The invention discloses a novel CWDM single-fiber dual-direction receiving and sending device and a packaging method. Three filters are fixed to a filter support and are arranged in the horizontal direction, the included angle between each filter and the vertical direction ranges from 10 degrees to 15 degrees, and the included angle between each fiber and the horizontal direction ranges from 30 degrees to 35 degrees. After being welded to each other through lasers, an optical fiber assembly and a metal shell are coupled to a detector chip and then bonded through adhesives and solidified at a high temperature; then, a laser device chip is arranged in a laser device chip tube seat in a pressed mode and is fixed through lasers in a penetrating welding mode; an opto-isolator is arranged in an isolator seat and fixed through bake glue, is then arranged in the laser device chip tube seat and fixed through lasers in a welded mode, and is finally coupled through a metal adjustment ring and fixed through lasers in a welded mode. The novel CWDM single-fiber dual-direction receiving and sending device and the packaging method have the advantages that indexes of laser devices and detectors of the structure can all meet requirements, and therefore dual-direction receiving and sending of CWDM single fibers with the interval of 20nm or a longer wavelength can be achieved.
Description
technical field [0001] The present invention relates to a small-angle optical splitting structure BOSA, in particular to a new type of CWDM single-fiber bidirectional transceiver device, which is applied to CWDM single-fiber bidirectional transceiver components with intervals of 20nm or above, CWDM backhaul RFoG systems, and the like. Background technique [0002] The current conventional structure BOSA such as figure 1 , including a metal shell 21, a 45° filter 22, a metal mirror frame 23, an optical fiber assembly 24, a rubber protective sleeve 25, a 0° filter 26, a detector chip 27, and a laser chip 28. This structure and similar structures can generally meet the requirements of single-fiber bidirectional transceivers with a wavelength interval of 60nm and above. The indicators cannot meet the requirements. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a novel CWDM single-fiber...
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IPC IPC(8): G02B6/42H04B10/40
Inventor 李永强辜健超
Owner SUSR COMM TECH